Emotion regulation of neuroticism: emotional information processing related to psychosomatic state evaluated by electroencephalography and exact low-resolution brain electromagnetic tomography.

Ikeda, Shunichiro and Mizuno-Matsumoto, Yuko and Canuet Delis, Leonides and Ishii, Ryouhei and Aoki, Yasunori and Hata, Masahiro and Katsimichas, Themistoklis and Pascual Marqui, Roberto D. and Hayashi, T and Okamoto, Eika and Asakawa, Tetsuya and Iwase, Masao and Takeda, M. (2015). Emotion regulation of neuroticism: emotional information processing related to psychosomatic state evaluated by electroencephalography and exact low-resolution brain electromagnetic tomography.. "Neuropsychobiology", v. 71 (n. 1); pp. 34-41. ISSN 0302-282X. https://doi.org/10.1159/000368119.

Description

Title: Emotion regulation of neuroticism: emotional information processing related to psychosomatic state evaluated by electroencephalography and exact low-resolution brain electromagnetic tomography.
Author/s:
  • Ikeda, Shunichiro
  • Mizuno-Matsumoto, Yuko
  • Canuet Delis, Leonides
  • Ishii, Ryouhei
  • Aoki, Yasunori
  • Hata, Masahiro
  • Katsimichas, Themistoklis
  • Pascual Marqui, Roberto D.
  • Hayashi, T
  • Okamoto, Eika
  • Asakawa, Tetsuya
  • Iwase, Masao
  • Takeda, M.
Item Type: Article
Título de Revista/Publicación: Neuropsychobiology
Date: 27 February 2015
ISSN: 0302-282X
Volume: 71
Subjects:
Freetext Keywords: α band, Electroencephalography, Emotion, Exact low-resolution brain electromagnetic tomography, Functional connectivity, Neuroticism
Faculty: Centro de Tecnología Biomédica (CTB) (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Emotion regulation is the process that adjusts the type or amount of emotion when we experience an emotional situation. The aim of this study was to reveal quantitative changes in brain activity during emotional information processing related to psychosomatic states and to determine electrophysiological features of neuroticism. Twenty-two healthy subjects (mean age 25 years, 14 males and 8 females) were registered. Electroencephalography (EEG) was measured during an emotional audiovisual memory task under three conditions (neutral, pleasant and unpleasant sessions). We divided the subjects into two groups using the Cornell Medical Index (CMI): (CMI-I: control group, n = 10: CMI-II, III or IV: neuroticism group, n = 12). We analyzed the digital EEG data using exact low-resolution brain electromagnetic tomography (eLORETA) current source density (CSD) and functional connectivity analysis in several frequency bands (?, ?, ?, ?, ? and whole band). In all subjects, bilateral frontal ? CSD in the unpleasant session increased compared to the pleasant session, especially in the control group (p < 0.05). CSD of the neuroticism group was significantly higher than that of the control group in the full band at the amygdala and inferior temporal gyrus, and in the ? band at the right temporal lobe (p < 0.05). Additionally, we found an increase in functional connectivity between the left insular cortex and right superior temporal gyrus in all subjects during the unpleasant session compared to the pleasant session (p < 0.05). In this study, using EEG analysis, we could find a novel cortical network related to brain mechanisms underlying emotion regulation. Overall findings indicate that it is possible to characterize neuroticism electrophysiologically, which may serve as a neurophysiological marker of this personality trait.

More information

Item ID: 41076
DC Identifier: http://oa.upm.es/41076/
OAI Identifier: oai:oa.upm.es:41076
DOI: 10.1159/000368119
Official URL: http://www.karger.com/Article/Abstract/368119
Deposited by: Memoria Investigacion
Deposited on: 07 May 2017 08:42
Last Modified: 07 May 2017 08:42
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